WaterHard.uk

Water Hardness in RM20 Grays

Supplied by Thames Water • Greater London, London

262 PPM 0 200 400
Hard
262
ppm (mg/L CaCO₃)
18.3°
Clark Degrees
14.7°
German Degrees (dH)
26.2°
French Degrees (fH)

Water Hardness in Grays (RM20)

The water in postcode district RM20 is classified as hard with a hardness level of 262 ppm (parts per million) calcium carbonate. This is 55 ppm above the UK national average of 207 ppm.

Your water is supplied by Thames Water, which serves the London region. Thames Water draws water from sources that naturally contain dissolved minerals, primarily calcium and magnesium compounds.

What Does Hard Water Mean for Your Home?

  • ! Significant limescale buildup in kettles, pipes and boilers
  • ! Soap scum on shower screens and taps
  • ! Higher energy bills from scale in heating elements
  • ! Dry skin and dull hair after washing
  • ! White residue on dishes and glassware

Solutions for Hard Water in Grays

At 262 ppm, you may benefit from a water softener or filter to reduce limescale and improve water quality.

View Solutions Water Softener Guide

Water2Buy W2B200 Water Softener

From ~£400

Best-value whole-house ion-exchange softener for UK homes. Eliminates limescale from pipes, boilers, and appliances. Digital metered regeneration — low salt use. 7-year warranty, suits 1–4 people.

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Philips AWP1775 Shower Filter

From ~£30

Instant improvement for skin and hair. Reduces chlorine and limescale at the showerhead — no plumbing needed. KDF filtration, cartridge lasts ~6 months. A great first step in a hard water area.

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BRITA Marella Water Filter Jug

From ~£20

UK's best-selling filter jug. Reduces limescale, chlorine, and metals for better-tasting tap water. Quick first step alongside a softener.

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How RM20 Compares

Area Hardness PPM
RM20 Grays
262 ppm
262 ppm
UK National Average
207 ppm
207 ppm

Nearby Areas

RM19
Purfleet On Thames
339 ppm

Frequently Asked Questions

What is the water hardness in RM20 Grays?
The water in RM20 Grays has a hardness level of 262 ppm (parts per million) calcium carbonate, classified as hard. This is 55 ppm above the UK national average of 207 ppm.
Which water company supplies RM20?
RM20 Grays is supplied by Thames Water. Thames Water serves the London region.
Is the water in RM20 safe to drink?
Yes. Hard water at 262 ppm is safe to drink. Water hardness affects taste and can cause limescale, but it is not a health risk. In fact, hard water contains beneficial minerals like calcium and magnesium.
How can I reduce water hardness in RM20?
For hard water at 262 ppm, a whole-house water softener is the most effective solution. You can also use a jug filter for drinking water, descaling products for appliances, and a shower filter for better skin and hair.
What does 262 ppm water hardness mean?
262 ppm means there are 262 parts per million of calcium carbonate dissolved in the water. This is equivalent to 18.3 Clark degrees, 14.7 German degrees, or 26.2 French degrees. Water above 180 ppm is generally considered hard.

Learn More

All postcodes in Grays Thames Water coverage Hard water effects on your home Solutions for hard water

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